The system requirements seem to be almost identical to Call of Duty 4, so if you are able to run that with decent frames, you should have no problem running MW2 on your PC. The recommended system requirements should be available soon.

As a side note, it seems that the game requires you to have an internet connection to activate the game. Hardly surprising, since MW2 has been partly integrated with Steam.

Call of Duty: Advanced Warfare is an upcoming first-person shooter by Sledgehammer Games (co-developers of Modern Warfare 3). The power of next-gen platforms makes the advanced warfare game the best looking COD game to date. AW multiplayer has all-new weapons, powerful exoskeletons, perks, killstreaks and maps.